NKorean art troupe arrives by boat in SKorean for Winter Olympics

The transcript consists of brief exchanges indicating initial thoughts and final agreement.

What is the significance of the repeated use of 'OK' in the dialogue?

What do you think about the statement 'I think they are'?

What can be inferred about the speaker's attitude from the text provided?

How does the phrase 'so yeah' contribute to the flow of conversation?

In what context do you think the speaker is using 'OK'?